Let's look at where stackoverflow.com traffic came from for the year of 2010. When 88.2% of all traffic for your website comes from a single source, criticizing that single source feels … risky. And perhaps a bit churlish, like looking a gift horse in the mouth, or saying something derogato...

I don't usually talk about my personal life here, but I have to make an exception in this case. I debated for days which geeky reference I would use as a synonym for "we're having a baby". The title is the best I could do. I'm truly sorry. As an aside, this is something my wife and I have w...

I have some issues with OpenID.
If a provider goes down, is hacked or changes their format, you're sunk, not just one one site, but on every site you used.
Users are unfamiliar with the concept, they might forget which provider they used to login in with at one time and login with a different provider the next time. The site has no way of connecting the identities.
Using your drivers license metaphor: I don't want every blog I comment on to know my weight, address, or even my full name, I want a way to control who gets what information.
I agree that this single credential idea is good and has a lot of potential, but I am wary of evangelizing it to the world before it is ready. If people use it and dislike it, it could crush this idea forever. It's like nuclear power, the accidents that occurred in its infancy set adoption of the technology back by decades. Wait until you get something that's idiot proof, then I'll evangelize it.

Back in summer 2008 when we were building Stack Overflow, I chose OpenID logins for reasons documented in Does The World Really Need Yet Another Username and Password: I realize that OpenID is far from an ideal solution. But right now, the one-login-per-website problem is so bad that I am wil...

How much is a good idea worth? According to Derek Sivers, not much: It's so funny when I hear people being so protective of ideas. (People who want me to sign an NDA to tell me the simplest idea.) To me, ideas are worth nothing unless executed. They are just a multiplier. Execution is worth m...